India is expected to adopt a dual GST model where the central and state governments will levy GST simultaneously, on a common taxable value, on the supply of goods and services. However, in the case of imports and interstate supplies, an IGST (Integrated GST) shall be levied by central government. The proposed GST will subsume most of the existing central and state taxes on the supply of goods and services including central excise, service tax, state level Value Added Tax (VAT) and other local levies on goods.